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Product details

Parameters

Output options Fixed Output Iout (Max) (A) 1 Vin (Max) (V) 5.5 Vin (Min) (V) 2 Vout (Max) (V) 2.5 Vout (Min) (V) 1.2 Fixed output options (V) 1.2, 1.5, 1.8, 2.5 Noise (uVrms) 60 Iq (Typ) (mA) 0.05 Thermal resistance θJA (°C/W) 63 Approx. price (US$) 0.18 | 1ku Load capacitance (Min) (µF) 1 Rating Catalog Regulated outputs (#) 1 Features Accuracy (%) 1.3 PSRR @ 100 KHz (dB) 50 Dropout voltage (Vdo) (Typ) (mV) 455 Operating temperature range (C) -40 to 125 open-in-new Find other Linear regulators (LDO)

Package | Pins | Size

SOT-223 (DCY) 4 46 mm² 6.5 x 7 open-in-new Find other Linear regulators (LDO)

Features

  • Accuracy: 1.5% (typ)
  • Low IQ: 100 µA (max)
    • 500x Lower Than Standard 1117 Devices
  • VIN: 2.0 V to 5.5 V
    • Absolute Maximum VIN: 6.0 V
  • Stable with 0-mA Output Current
  • Low Dropout: 455 mV at 1 A for VOUT = 3.3 V
  • High PSRR: 65 dB at 1 kHz
  • Minimum Ensured Current Limit: 1.1 A
  • Stable with Cost-Effective Ceramic Capacitors:
    • With 0-Ω ESR
  • Temperature Range: –40°C to +125°C
  • Thermal Shutdown and Overcurrent Protection
  • Available Package: SOT223
    • See the Package Option Addendum at the end of this document for a complete list of available voltage options.
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Description

The TLV1171 low-dropout (LDO) linear regulator is a low input voltage version of the popular 1117 voltage regulator.

The TLV1171 is an extremely low-power device that consumes 500x lower quiescent current than the traditional 1117 voltage regulator, making the TLV1171 suitable for applications that mandate very low standby current. The TLV1171 LDO is also stable with 0 mA of load current; there is no minimum load requirement, making the device an ideal choice for applications where the regulator is required to power very small loads during standby in addition to large currents on the order of 1 A during normal operation. The TLV1171 offers excellent line and load transient performance, resulting in very small magnitude output voltage undershoots and overshoots when the load current requirement changes from less than 1 mA to more than 500 mA.

A precision band gap and error amplifier provides 1.5% accuracy. A very high power-supply rejection ratio enables the device to be used for post-regulation after a switching regulator. Other valuable features include low output noise and low-dropout voltage.

The device is internally compensated to be stable with 0-Ω equivalent series resistance (ESR) capacitors. These key advantages enable the use of cost-effective, small-size ceramic capacitors. Cost-effective capacitors that have higher bias voltages and temperature derating can also be used if desired.

The TLV1171 is available in a SOT223 package. For alternate pin outs of the device, refer to the TLV1117LV.

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Technical documentation

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Type Title Date
* Datasheet 1-A, Positive Fixed-Voltage, Low-Dropout Regulator datasheet Apr. 11, 2012
Technical articles LDO basics: capacitor vs. capacitance Aug. 01, 2018
Technical articles LDO Basics: Preventing reverse current Jul. 25, 2018
Technical articles LDO basics: introduction to quiescent current Jun. 20, 2018
Technical articles LDO basics: noise – part 1 Jun. 14, 2017
User guides TLV117125EVM-097 Evalutation Module Feb. 23, 2012

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$5,749.00
Description

The DLP® LightCrafter™ 9000 is a high performance and highly flexible development kit for incorporating DLP technology into a wide variety light steering applications. This EVM is an easy path for solutions maximizing resolution, optical throughput and brightness.

At the heart of DLP LightCrafter 9000 (...)

Features

DLP9000

  • Development- LightCrafter 9000 EVM
  • Maximum Bandwidth- >40 Gbps
  • Maximum Binary Pattern Rate- 9.5 kHZ
  • DLP Digital Controller-DLPC900
  • DLP PROM-DLPR900
  • Wavelength Range- 400-700 nm
  • Micromirror Array Size- 2560 x 1600
  • Display Resolution- WQXGA
  • Micromirror Array Diagonal- 0.9 inches
  • Micromirror Pixel Pitch (...)
EVALUATION BOARDS Download
document-generic User guide
$20.00
Description
The Texas Instruments TLV117125EVM-097 Evaluation Module (EVM) demonstrates the proper operation of the TLV1117125 1A, Positive Fixed Voltage, Low-Dropout Linear Regulator. The EVM is a fully assembled, stand alone evaluation module. It contains a low-dropout regulator IC for positive fixed voltage (...)
Features
  • 1.5% Accuracy
  • Extremely low IQ=100µA (max)
  • Input Voltage 2.0V – 5.5V
  • Abs Max Vin = 6.0V
  • Stable with 0mA Output Current
  • Stable with cost-effective Ceramic Capacitors
  • 455mV dropout @ 1A
  • Protections: Overcurrent and Over temperature
  • High PSRR: 65dB at 1kHz
  • Minimum Current Limit: 1.1A
  • SOT-223 DCY Package

Design tools & simulation

SIMULATION MODELS Download
SBVM173.ZIP (32 KB) - PSpice Model
SIMULATION MODELS Download
SBVM218.ZIP (32 KB) - PSpice Model
SIMULATION MODELS Download
SBVM219.ZIP (20 KB) - PSpice Model
SIMULATION MODELS Download
SBVM361.ZIP (21 KB) - PSpice Model

CAD/CAE symbols

Package Pins Download
SOT-223 (DCY) 4 View options

Ordering & quality

Support & training

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